.loading-bar {
  animation-duration: 2s;
  animation-name: loading-bar;
  animation-iteration-count: infinite;
  background: linear-gradient(to right, orange, yellow, green, cyan, blue, violet);
  height: 2px;
  width: 200%;
  z-index: 1100;
}

@keyframes loading-bar {
  from {
    left: -100%;
  }

  to {
    left: 0;
  }
}
